Resilient wheel.



WWW

M. G. OVERMAN.

RESILIENT WHEEL.

APPLICATION FILED 1330.9, 1905. 950,299., Patented Feb.22, 1910.

2 SHEETS-SHEET 1.

'IIIIIIIIIIIIIIII WITNESSES 1 IVVENIOI? 3 M. c. OVERMAN. RESILIENT WHEEL.

APPLICATION FILED DEC. 9, 1908;

IM. (L .I... I H

ATTORNEY ToIalZ concern.

max ctlqvsmvrin, or NEW YORKN'. Y. Y

RESILIENT WHEEL- 4 Specification of letters Patent; I

Application filed lJecember 2, 1908. Serial No. 466,606.

citizen' f theorem States, .and resident of the'city, county, and State'o f New York,.

have invented certain new and; useful Imthe following is a Specification.

This invention relates toran improved resilient wheel intended for use with automobiles and other vehicles and involves a combination of compression springs and other parts highly -advanta eous for the purpose.

In thedrawings, wiichshow a preferred.

form of the wheel, Figure 1 is a side elevation andxpartialsection of the wheel; Fig.

2 is an enlarged transverse section'through the hub,.rim and one of'the spokes; Fig. 3 is an enlarged perspective of the strut member and lconne'cted parts; Fig. 4: is an enlarged perspective' of one of the hub end-' members-(Fig, 5:is a view on an enlarged scale of'part of Fig; 2 to bring'out particularly..the relation of the dust tube to' the away and omitting the springs and other spoke tubes; and Fig. 6 is a view atrig ht angles to that in Fig. 5 of; the hub-end of one of the spokes detached from the hub, said view showing various parts broken parts frointhe interior of the spoke.

I will now describe the devices of the drawings, reserving. it to. the claims to point out the, novel features and to define the scope of the inventionf The vvheel-shown, comprises a-series of telescopingspoke'sconnecting-fa hub 17 to a rim 19. The latter is shown carrying the tire" 20.v Each spoke consists ofa pair of tubes With-their i'nner ,ends telescopedand with theirouter ends respectively -having pivotal connection with the hub and rim toswing in the plane of the. wheel but not transversely. The tubes connected with the hub'fhave endmembers 6 and the rim-tubes have end-members 7. Each member 7 base socket in its base receiving the knuckle of a base-plate 8 secured to the rim A pin 9 received through an opening 5 in the side of the member?- asse's through an eye in the knuckle of the case pl'ate and ,is seated at either end in the memberfi, whereby said member is pivotally connected with the 'base'-plate. The

member 7 screws-into the end of the rin1-' tube-whichcloses the opening 5 and prevents the in 9' from working out.

T e members 6 each have a tubular base sorew-connecting. with a hub-tube and an C= OVERMAN, a

provements in ResilientVVhedS, of which" I end received between liub flanges116, said ends tapering toward the hub-center'on their are rigidly secured; between the flanges 16- as pivots for said member o swing on f An annular flange'lz is. provided-,;in the inner tube A tubular' 1stru t j13 slidesthrough an" opening in the flange' l2 and,

-from over-compression;Land injury. .The

' struts 13 being subjectedftofgreatcompressive strains are preferably made tubular,

the oppositely acting compression springs-3 apart, and thelatter ftotelescope them; The compartments cont a ing'thespr -i gs iare preferably longeifl tjliauthose containing the springs 3, and thelspr'in'gs {lewhenfully relaxed are longer than the springs 1n the 1 same condition, have-a normal -compresthem predominat strongly together and give'a strong wheel. Moreover, practice shows that this condit on gives resiliencywithout unduly oscillating the load, which latter'is the tendency when the springs 3 predominate. Again', 1t is l nportant that the springs. i dominate, especomes'upon .them, as well as the shock of jra a p t nan sidesadjacenttheotheri endsl "Sleeves 22- on oneside thereof, screw-connects'wit-li the; nipple of the member? and'on the other sideis provided with; a-flange'il iiicomprising the outwardly'extending head ,of 'astem-screw j compartments is made equal to the1maximum.

here 6 and willis'avefl the springs in the spokes and 4,.the former tendin'g'toforce" the-tubes 9o sion in the setfup unloaded wheel making 'iri strength pver the springs 3. "They-have jalsoa greater ,working range before'becoming fully closed, The dominatingisprings fit bind the'hub and rnncially' in the-{rear wheels, because the drive stopping or s'udden chan es in; speed. 7 Thus,

- in the drive, 'the hub ten s to'revolve ahead.

of the rim carryingthe spo'kesout of truev nr. 0. l s B es Pat-enema; 22, 1910.1

at the spoke-intervals}:aroundjthe hub by ceivedin openings-24 in the"me nbers G-serve I I The flanges 12 and 145' divide the spoke i In the wheel shown, the compartments toward the-I hub are vacant land are I'Slhort ito give a The flanges l2 andli act" as.'abut1nents for I puts under increased compression the springs 4. These springs being so important, the

described greater workmg range has been provided for them to save them at any time from over-compression and injury. The springs 4 are likewise saved from over-compression, due to too great pulling-apart of the tubes, by shoulders on the hub end members 6, which check against the edge of the hub flanges and prevent the spokes from swinging too far in either direction, out of radial position. The same result may be accomplished by the contact of the tapering sides of the various members 6 with each other.

Each spring 3 and 4 is shown with an inner compression spring 3 and 4* respectively, with coils disposed at a different angle to prevent interference with those of the companion spring. These springs 3 and 4 are auxiliary in that they assist 3 and at. Thus each helps to resist compression.

5 Moreover, these springs, especially 4, are

efi'ort correspon mg the designed to be under comparatively slight compression, in other words are such-as to have a comparatively slight active effort or pressure in the set-up unloaded wheel, and consequently serve to reinforce the springs 4 in resisting com ression with an increasing to the degree of compression, whereas on the release, their effort diminishes topractically nothing when the hub, in its return oscillation, has nearly approached its center. Consequently these springs are highly effective just when needed and do not create oscillation.

Dust excluding devices are providedcomprising a tube 21 externally concentric with the inner spoke-tube 2 and extending from the base of its member 6, to provide an annular space in which the wall of the outer spoke tube 1 and an external dust-ring 10 at its month are snugly received and can slide during any telescoping of the tubes on each other. u

18 is a ring of packing material carried I on the inside of the dust-ring 10 in an annular-recess therein, said ring of packing material assisting in excluding dust y beartu e 2.

Oil ducts 26 serve to admit a lubricant to ivot 9 from the spoke interior, into whic it'may be inserted through a convenient opening.

Having thus described my invention, what I claim 1s:

1. In a resilient wheel, the combination of a hub,'.a rim, spokes com rising pairs of telesco ing tubes having t eir outer ends pivota 1y connected with the hub and rim to pivot in the plane of the wheel, a pair of abutments one carried with eachspoke-tube, said abutments being arranged a to move away from each other as the spoke-tubes are telescoped farther together, and a plurality l of compression springs'located between the abutments in each spoke and nested inside one another. the-outer springs of the nests compared with the inner springs exerting in the set-up unloaded wheel a relatively strong pressure tending to force the abutments apart, so that, on the release of such of the nests of springs as have been compressed by 7 a shock, the inner springs of said nests have minimized tendency to oscillate thehub past the center of the wheel.

2. In a resilient wheel, the combination of a hub, a rim, spokes comprising pairs of telescoping tubes having their outer ends pivotally connected with the hub and riinto pivot in the plane of the wheel, a pair of abutments one carried with each spoke-tube, said abutments being arranged to move away from each other as the spoke-tubes are telescoped farther together, and a plurality of compression springs located between the abutments in each spoke and nested inside one another, the outer springs of the nests having a fully released length which is greater than that of the inner springs and being, compressed in the set-up unloaded wheel through a greater distance than the inner springs, the compression of the inner springs being such that they have minimized tendency to oscillate the hub past the center of the wheel.

In a resilient wheel, the combination of a hub, a rim, spokes comprising pairs of telescoping tubes having their outer ends pivotally connected with the hub and rim to pivot in the plane of the wheel, a pair of abutments one carried with each spoke-tube, said abutments being arranged to move away from each otheras the spoke-tubes are telescoped farther together, a plurality of compression springs located between the abutments in each spoke and nested inside one another, the outer springs of the nests compared with the inner springs exerting in the set-up unloaded wheel a relatively-strong effort tending to force the abutments apart, so that, on the release of such of the nests of springs as have been com ressed by a shock, the inner springs of sai nests have minimized tendency to oscillate the hub past the .center of the wheeli and second spiral springs within the spo es acting under compression in the set-up unloaded wheel on the 1 spoke-tubes with tendency to force them apart, the first named springs, however, predominating so that the hub and rim of the Wheel still have a strong tendency toward each other. v

4. In a resilient wheel, the combination of a hub, a rim, spokes comprising pairs of telescoping tubes havin their outer ends pivota 1y connected wit thehub and rim to pivot in the plane of the wheel, a pair of 1 scoped farther together. a plurality of compression springs located between the abutments in each spoke and nested inside one 1 another, the outer springs of the nests com- I i l pared with the inner sprmgs exerting. in the f set-up unloaded. wheel a relatively strong effort tending to force the abutments apart,

so that, on the release of such of the nests of j springs as have been compressed by a shock, i the mner springs of said nests have m1n1- mized tendency to oscillate the hub past the center of the wheel, and second spiral springs within the spokes acting-under compression in the set-up unloaded wheel on the spoke-tubes with tendency to force them apart, the first named springs having a fully released length greater than that of the second springs and having a compres-,-

sion in the set-up unloaded wheel which gives them a dominating strength over the second springs.

In a resilientwheel, the combination of a hub, a rim, spokes comprising pairs of telescoping tubes having their outer ends pivotally connected with the hub and rim to pivot in the plane of the wheel, the pivotal connecting means between the rim and each rim spoke'tube comprising a knuckle member on the rim, an end-member secured in the outer end of the spoke-tube, said member having a socket in its base receiving the knuckle and further having an opening through its side receiving av pivot pin, said pin passing through the eye of the knuckle and having its ends seated in the end-member whereby said member is pivotallycolr nected with the knuckle member, the endmcmber being secured in the end of the spoke-tube with the wall of the latter clos-'i ing the pin-entrance opening.

6. In a resilient wheel, the combination of a hub, a rim, spokes comprising pairs of telescoping tubes having their outer ends pivotally connected with the hub and rim to pivot in' the plane of the wheel, the hub having flangesv which receive pivotally supported between them the hub-ends of the hub spoke-tubes, said ends at their sides adjacent the other hub-ends tapering in the general direction of the center of the hub, the tapering sides of adjacent hub-ends being slightly separated when their spokes are in radial position so thatwhen they are to one side of radial position, they check against each other.

7. In a resilient wheel, the combination of a hub, a rim,;spokes comprising pairs of telescoping tubes with their outer endspivotally connected with the hub and rim, an external concentric dust-tube secured dusttight to the pivot end of the inner tube of each spoke, said dust-tube providing an annular space between itself and said inner tube within which snugly slides the mouth of the outer spoke-tube. 8. In a resilient wheel, the combinatio of a hub, a rim, means operatively connecting the hub and rim, the hub being able to oscillate relative to the rim, and a plurality of nests of compression springs acting upon the hub and rim to draw them together, the outer springs of the nests, compared with the inner, having said drawing-together ac tion'in the set-up unloaded wheel to a relatively strong extent so that, on the release of such of the nests of springs as have been compressed by a shock, the inner springs of said nests have minimized tendency to oscillate the hub past the center of the wheel.

Witness my hand this 7th day of December, 1908, at New York, N. Y.

I MAX C. OVERMAN.

Witnesses \VILLIAM R. BAIRD,

E. W. SCHERR, Jr. 

